123355053660 has 96 divisors (see below), whose sum is σ = 360582868800. Its totient is φ = 31468953600.

The previous prime is 123355053643. The next prime is 123355053673. The reversal of 123355053660 is 66350553321.

It is a super-2 number, since 2×123355053660² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135541 + ... + 514860.

It is an arithmetic number, because the mean of its divisors is an integer number (3756071550).

Almost surely, 2^123355053660 is an apocalyptic number.

123355053660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123355053660 is an abundant number, since it is smaller than the sum of its proper divisors (237227815140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123355053660 is a wasteful number, since it uses less digits than its factorization.

123355053660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650551 (or 650549 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 39.

It can be divided in two parts, 1233550 and 53660, that added together give a triangular number (1287210 = T₁₆₀₄).

The spelling of 123355053660 in words is "one hundred twenty-three billion, three hundred fifty-five million, fifty-three thousand, six hundred sixty".